Analysis of urban gas pipeline leakage disaster evolution process based on disaster chain and complex network theory
In order to analyze the evolution process of urban gas pipeline leakage disaster,by collecting typi-cal accident cases of urban gas pipeline leakage for statistical analysis,combined with the disaster chain and complex network theory,the urban gas pipeline leakage disaster chain was constructed,which was trans-formed into a complex network topology structure diagram,and its key nodes and key edges were analyzed.The results show that the urban gas pipeline leakage disaster chain can be divided into three stages,name-ly,the early,middle and late stages of disaster evolution.Urban network propagation path of gas pipeline leakage disaster chain can be effectively damaged or cut off by destroying key nodes such as fire,explosion,building collapse,adjacent pipeline damage,pipeline leakage,social public events,enterprise production sus-pension,and casualties,or cutting off key edges such as pipeline leakage→explosion,pipeline leakage→fire,adjacent pipeline damage→gas supply equipment damage,road damage→traffic paralysis,explosion→adja-cent pipeline damage.The results of this study can provide a scientific basis for the emergency treatment of urban gas pipeline leakage disasters and the disconnection of chain disaster reduction.
万方数据
维普
